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* = Original cosponsor
Cosponsor Date Cosponsored
Sen. Bingaman, Jeff [D-NM]* 06/05/2008
Sen. Domenici, Pete V. [R-NM]* 06/05/2008
Sen. Johnson, Tim [D-SD]* 06/05/2008
Sen. Thune, John [R-SD]* 06/05/2008
Sen. Salazar, Ken [D-CO]* 06/05/2008
Sen. Smith, Gordon H. [R-OR]* 06/05/2008
Sen. Barrasso, John [R-WY]* 06/05/2008
Sen. Enzi, Michael B. [R-WY]* 06/05/2008
Sen. Feinstein, Dianne [D-CA]* 06/05/2008
Sen. Crapo, Mike [R-ID]* 06/05/2008
Sen. Cantwell, Maria [D-WA]* 06/05/2008